Sunday Night Football preseason action topped the broadcast week both with adults 18-49 and total viewers. All three Big Brother telecasts and NFL preseason action on Fox rounded out the top 5 with adults 18-49. America's Got Talent was pushed all the way down to 8th with adults 18-49 for the week, though still places 2nd (and 3rd) in total viewers. Fox again won the week overall with adults 18-49 and CBS again won the week with total viewers.
Primetime Broadcast Adults 18-49 Viewers for the week ending August 21, 2011:
| Rank | Shows | R=Repeat S=Special P=Premiere | Net | 18-49 rating | 18-49 Viewers (000) |
| 1 | NBC NFL PRE-SSN 8/21(S) | S | NBC | 3.7 | 4,800 |
| 2 | Big Brother 13-SUN | CBS | 3.2 | 4,166 | |
| 3 | Big Brother 13-WED | CBS | 3.1 | 4,137 | |
| 4 | NFL ON FOX PRESEASON 2(S) | S | FOX | 3.1 | 4,030 |
| 5 | Big Brother 13-THU | CBS | 2.9 | 3,842 | |
| 6 | MASTERCHEF-TUE | FOX | 2.9 | 3,781 | |
| 7 | HELL'S KITCHEN-MON | FOX | 2.9 | 3,762 | |
| 8 | AMERICA'S GOT TALENT-TUE | NBC | 2.8 | 3,728 | |
| 9 | AMERICA'S GOT TALENT-WED | NBC | 2.5 | 3,245 | |
| 10 | MASTERCHEF SP-8/16 8P(S) | S | FOX | 2.4 | 3,220 |
| 11 | MASTERCHEF-MON | FOX | 2.4 | 3,160 | |
| 12 | NFL ON FOX PRESN PREGAME2(S) | S | FOX | 2.3 | 3,049 |
| 13 | NBC NFL PRE-SSN PRKCK8/21(S) | S | NBC | 2.2 | 2,837 |
| 14 | BACHELOR PAD | ABC | 2.1 | 2,783 | |
| 15 | FUERZA DEL DESTINO THU | UNI | 1.9 | 2,517 | |
| 16 | FUERZA DEL DESTINO FRI | UNI | 1.9 | 2,504 | |
| 17 | WIPEOUT-THURS | ABC | 1.9 | 2,504 | |
| 18 | FUERZA DEL DESTINO TUE | UNI | 1.8 | 2,416 | |
| 19 | FUERZA DEL DESTINO MON | UNI | 1.8 | 2,399 | |
| 20 | TERESA THU | UNI | 1.7 | 2,289 | |
| 21 | FUERZA DEL DESTINO WED | UNI | 1.7 | 2,275 | |
| 22 | PEQUENOS GIGANTES SUN | UNI | 1.7 | 2,246 | |
| 23 | Big Bang Theory, THE | R | CBS | 1.7 | 2,245 |
| 24 | Modern Family | R | ABC | 1.7 | 2,241 |
| 25 | Rules of Engagement | R | CBS | 1.7 | 2,231 |
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Primetime Broadcast Network Total Viewers (all ages):
| Rank | Shows | R=Repeat S=Special P=Premiere | Net | # Viewers (LIVE+SD) (000) | HH RATING (LIVE+SD) | HH SHARE (LIVE+SD) |
| 1 | NBC NFL PRE-SSN 8/21(S) | S | NBC | 10676 | 6.4 | 11 |
| 2 | AMERICA'S GOT TALENT-TUE | NBC | 10395 | 6.0 | 10 | |
| 3 | AMERICA'S GOT TALENT-WED | NBC | 9742 | 5.6 | 9 | |
| 4 | NCIS | R | CBS | 8704 | 5.7 | 10 |
| 5 | NFL ON FOX PRESEASON 2(S) | S | FOX | 8587 | 5.3 | 9 |
| 6 | BIG BROTHER 13-SUN | CBS | 8367 | 4.7 | 8 | |
| 7 | BIG BROTHER 13-WED | CBS | 8141 | 4.8 | 8 | |
| 8 | NCIS: LOS ANGELES | R | CBS | 7901 | 5.0 | 8 |
| 9 | 60 Minutes | R | CBS | 7797 | 5.0 | 9 |
| 10 | BIG BROTHER 13-THU | CBS | 7735 | 4.5 | 8 | |
| 11 | NBC NFL PRE-SSN PRKCK8/21(S) | S | NBC | 7621 | 4.7 | 9 |
| 12 | CSI | R | CBS | 7145 | 4.6 | 8 |
| 13 | MASTERCHEF-TUE | FOX | 7119 | 4.0 | 6 | |
| 14 | HELL'S KITCHEN-MON | FOX | 6986 | 3.8 | 6 | |
| 15 | Big Bang Theory, THE | R | CBS | 6795 | 4.4 | 8 |
| 16 | NFL ON FOX PRESN PREGAME2(S) | S | FOX | 6662 | 4.1 | 8 |
| 17 | WIPEOUT-THURS | ABC | 6474 | 3.4 | 6 | |
| 18 | BACHELOR PAD | ABC | 6412 | 4.3 | 7 | |
| 19 | MASTERCHEF SP-8/16 8P(S) | S | FOX | 6286 | 3.6 | 6 |
| 20 | Dateline SUN-7PM | NBC | 6106 | 3.8 | 7 | |
| 21 | MASTERCHEF-MON | FOX | 6075 | 3.5 | 5 | |
| 22 | Rules of Engagement | R | CBS | 5910 | 3.7 | 6 |
| 23 | Hawaii Five-0 TUESDAY SP(S) | SR | CBS | 5909 | 3.9 | 7 |
| 24 | FLASHPOINT | CBS | 5855 | 3.7 | 7 | |
| 25 | Criminal Minds | R | CBS | 5829 | 3.7 | 6 |
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Nielsen TV Ratings: ©2011 The Nielsen Company. All Rights Reserved. All numbers are live viewing plus same day DVR viewing.
